code: def test_info_flac(self):
      self._test_info_format(".flac")
  
imports: from itertools import product
  import random
  import numpy
  import torch
  import torchaudio
  from audiocraft.data.audio import audio_info, audio_read, audio_write, _av_read
  from ..common_utils import TempDirMixin, get_white_noise, save_wav
label_desc: Use image node_id 4 for calling the TestInfo obj's underlying member method code with example usage: obj.test_info_flac() without return types